If you are not going to "Open Carry" why in the heck would you need a retention device?
If you use a proper fitting, well made, quality Holster, like a Milt Sparks, Greg Kramer, Mitch Rosen or Matt Del Fatti I fail to see the need for a retention device.
On another note, I think the 442/642 belongs on the ankle or in the pocket with a more "substantial" firearm on the Belt. I carry my Airweight in my pocket or on my ankle as a BUG off duty to my SP101 on the weakside and my GP100 on the strongside.
Good gear will help you to conceal more than you think.
Biker
PS: When you order a Holster, order a Belt too. It is the foundation of the Belt Holster rig.
